2005 · Chevrolet · United States

2005 Chevrolet Monte Carlo SS: supercharged only

The Supercharged SS is the only SS; 240 hp and 280 lb-ft.

United States · researched through 2026-09-22

Torch Red 2000 Chevrolet Monte Carlo SS coupe parked on a city street, front three-quarter, with Monte Carlo SS script on the door
Shown: 2000 Chevrolet Monte Carlo SS in Torch Red Photo: Cutlass, CC0, via Wikimedia Commons

This record's own dek states that the Supercharged SS is the only SS for 2005, at 240 hp and 280 lb-ft, with no plain, non-supercharged SS documented for the model year at all. GM's own 2005 restoration kit confirms directly that Chevrolet dropped the non-supercharged SS for the year, leaving the L67 Supercharged SS as the sole performance trim alongside the plain LS and LT models, per the same specification sheet's own three-model lineup listing. Wikipedia's own 2000-2007 production table, citing The Encyclopedia of American Cars, gives 37,143 Monte Carlos of all trims for 2005 without a separate SS split, and this record's own production notes state that the missing SS figure reflects a genuine gap rather than an implied zero.1

The L67 supercharged 3800 V6 is documented at 240 hp at 5,200 rpm and 280 lb-ft at 3,600 rpm, 8.5:1 compression, up to 8 lb of boost, and a 92-octane fuel requirement, confirmed identically across the specification sheet and the restoration kit. A heavy-duty four-speed electronically controlled automatic is the sole transmission documented, paired with a 2.93:1 final drive ratio specific to that heavy-duty 4T65-E unit, with no alternate transmission or axle ratio recorded anywhere in this record for the year.

Specification detail is extensive: a 3,522-lb curb weight, a 65/35 front-to-rear weight distribution as printed, 34 mm and 19.5 mm front and rear stabilizer bars, 2.3 steering turns lock-to-lock, a 39.6-foot curb-to-curb turning circle, W-rated Goodyear Eagle RSA tires sized P235/55R17, 17-inch diamond-cut cast aluminum wheels, and a 72.7-inch overall width, all drawn from the same restoration kit that supplies the engine and drivetrain figures above. GM's own estimate gives 18 city, 28 highway and 22.5 combined mpg for the L67, a slightly more detailed figure than the plain 19/28 city/highway pair printed on the separate specification sheet, and this record carries both rather than treating one as superseding the other.

This record's own prices, options, paint and interiors sections are all empty for 2005, a documented gap despite the depth of chassis and powertrain specification detail already described above for the Supercharged SS specifically, leaving no color list, trim code, or dealer-order price found in an accessible source for the year. Both the specification sheet and restoration kit name Oshawa, Ontario as the assembly plant for all 2005 Monte Carlo trims, a single-plant detail this record carries consistently across the two independent factory documents.

This record's own performance and identification sections are both empty for the year as well, leaving engine, transmission, and chassis specification as the whole of this record's technical coverage for 2005. No period road-test figure or VIN-decoding detail was located to add measured acceleration, braking, or body-plate information to that technical picture. A single unpublished lead describes Wikipedia's mention of a 2005 Tony Stewart edition using the L67 engine, but this record notes that the claim is tertiary and uncited, so it is not adopted into this record's own configuration or production data for the year, leaving that named edition undocumented beyond the single uncited mention.1

Fact sheet · 2005 · United States

The numbers

2005 Chevrolet Monte Carlo SS — The Supercharged SS is the only SS; 240 hp and 280 lb-ft.

Coverage: Partial — researched sections are shown; missing ones are not yet sourced. Researched through 2026-09-22.

Every figure is labeled with how sure we are. Reported means a manufacturer, registry, or reference figure we cite but have not reconciled against factory records ourselves. Disputed means credible sources disagree and both are shown. Rows are separately scoped; don't add them together unless the note says they make up a total.

Key facts

  • Model list: LS, LT and Supercharged SS; the SS is supercharged only.
  • GM's 2005 restoration kit says Chevrolet dropped the non-supercharged SS for 2005, leaving the Supercharged SS (L67, 240 hp) on a heavy-duty 4T65-E with a 2.93:1 final drive; its curb weight is 3,522 lb.

Production

Totals
What was countedCountBasisStatus
Monte Carlo, all trims1 2-door coupe · not stated All trims; no SS split is given in this table. 37,143 built, model-year Reported

No SS-only production figure was found for this year unless a separate row says so. Missing is not zero.

Engines

EngineFactory ratingAvailabilityBuilt
L67 · Supercharged 3800 V6 231 cu in · supercharged 240 hp @ 5,200, 280 lb-ft @ 3,600 (SAE basis not stated) standard on Supercharged SS Not yet sourced

Ratings are the manufacturer's advertised figures under the standard shown (SAE gross before 1972, SAE net after). They are not dyno results, and gross and net ratings can't be compared directly.

Transmissions

TransmissionAvailabilityBuilt
Hydra-Matic 4-speed electronically controlled automatic (heavy-duty on SS) standard Not yet sourced

Specifications

MeasureValueApplies to
Fuel economy, city/highway, Supercharged 3800 (GM estimate) 19/28 mpg Supercharged SS
Wheels, SS 17-inch diamond-cut cast aluminum SS
Final drive ratio, Supercharged SS (L67) 2.93 Supercharged SS, heavy-duty 4T65-E
Compression ratio, L67 supercharged 3800 8.5:1 Supercharged SS
Recommended fuel, L67 92 octane required Supercharged SS
Curb weight, Supercharged SS 3,522 lb Supercharged SS
Weight distribution, front/rear 65 / 35 % Supercharged SS (as printed)
Stabilizer bars, front / rear 34 / 19.5 mm Supercharged SS
Steering turns lock-to-lock 2.3 Supercharged SS
Turning circle, curb-to-curb 39.6 ft Supercharged SS
Tires, Supercharged SS Goodyear Eagle RSA P235/55R17 W-rated Supercharged SS
Overall width 72.7 in all models
Estimated fuel economy, L67 (city/hwy/combined) 18 / 28 / 22.5 mpg Supercharged SS
Assembly plant Oshawa, Ontario, Canada all models

Identification

Read a 2005 Chevrolet VIN

The VIN decoder runs in your browser and never sends the VIN anywhere. How the factory numbered this year's cars:

Same model year

Also in 2005

  • Cadillac V-Series The CTS-V's biggest model year: 4,194 sedans in the V-Series production list, still with the 400-hp LS6 and a six-speed manual only.
  • Ford Thunderbird The final retro Thunderbird year, with a 1,500-car Cashmere 50th Anniversary edition; the last car left Wixom on July 1, 2005.
  • Pontiac GTO The 6.0-liter LS2 arrives at 400 hp in a shortened model year; 11,069 built.
  • Pontiac Grand Prix The GXP arrives with the 5.3-liter LS4 V8, driving the front wheels.